Lock



R. T. ROSS March 22, 1932.

LOCK

2 Sheets-Sheet Filed Dec. 1, 1930 FflglNVENTOR RaLZ ah 7 Ros s ,S l Q.) $3;

ATTORNEY R. T. ROSS March 22, 1932.

LOCK

2 Sheets-Sheet Filed Dec. 1. 1950 Illllllll INVENTOR Ragvh TRosa Q mm ATTORNEY Patented Mar. 22, 1932 RALPH T. ROSS, OF CARMICHAEL, CALIFORNIA LOCK Application filed December This invention relates to looks or door catches suitable for anyhinged doors. The principal'object of my invention is to provide a lock for the purpose so constructed that a push or pull on the control member (which takes theplace of the usual turnable knob) is all that is necessary to close or open the door respectively. This lock therefore is much easier to operate than the ordinary type, in which the turning of the knob must be accompanied by a push or pull to close or open the door. This feature is especially of advantage in connection with automobile doors which usually close somewhat snug in order toavoid rattling when the car is in motion. On account of this method of operation the relatively large handles or knobs now necessary in order to give the proper leverage are eliminated, and the control member may merely be in the form of a relatively small push button if desired.

A further object of the invention is to provide a simple and inexpensive device and yet one which will be exceedingly effective for the purpose for which it is designed.

These objects I accomplish by means of such structure and relative arrangement of parts as will fully appear by a perusal of the following specification and claims.

In the drawings similar characters of reference indicate corresponding parts in the several views:

Fig. 1 is a side elevation of the lock in its open position, with the side or cover plate of the lock casing removed and shown in connection with the strike plate.

Fig. 2 is a similar view showing the bolt in its locked position.

Fig. 3 is a sectional plan substantially on the line 33 of Fig. 2, showing thebolt as locked.

Fig. 4 is a similar view, showing the control member as having been moved to release the bolt and showing the latter as automatically retracted to its normal or inoperative position. This view is taken on a. plane substantially as on the line 4l4 of Fig. 1.

F ig. 5 is a fragmentary plan section taken on the line 5-5 of Fig. 2 showing the control-member as moved to release the bolt.

1, 1930. Serial NO. 499,170.

Fig. 6 is a fragmentary plan section taken on the line 66 of Fig. 2 showing the auxiliary bolt in its position relative tothe strike plate when the door is closed.

, 7 is a similar view taken on theline 7-? of Fig. 1 showing the position of the auxiliary bolt relative to the strike plate when the door is open.

Referring to the numerals of reference on the drawings, 1 denotes the casing of the lock in which all the mechanism is enclosed, and which is adapted to be mounted in connection with a door so that one end plate 2 of the casing is flush with the vertical transverse edge of the door opposite the hinge thereof, as usual. Slidably mounted in the casing is a bolt 3 adapted to project outwardly through the plate 2 a certain distance or to be retracted so as to be substantially flush therewith. inner end of the bolt tends to hold the same retracted, a stop 5 in the casing limiting this retractive movement. The outer end of the bolt is cut on a slope which faces away from the direction in which the door closes, and is adapted when projected from the plate 2 to seat in. a similarly shaped socket 6 provided in the strike plate 7. This plate as usual is adapted to be mounted on the adjacent transversely extending edge of the door casing. Vertically spaced from the bolt 3 and preferably in the same transverse plane as said bolt is an auxiliary bolt 8. This bolt is also slidably mounted in the casing, and adapted to project through the plate 2. The outer end of this bolt is cut on a slope facing in the direction in which the door closes. or opposite to the slope of the bolt and is adapted, when the door is moved to adjacent a closed position, to engage a similarly shaped socket 9 provided in the strike plate. This socket is of course relatively deep at its outer end and is open at such end; being disposed in a plane ahead of the socket 6 with respectto the direction of closing of'the door, as plainly shown in Figs. 3 and 4.

Fixed in the casing intermediate the bolts 3 and S is a transversely extending pin 10. This pin projects through a lever 11 inter- A spring 4 acting on the h mediate the ends of the same; said lever being both slidable and turnable on the pin. At one end the lever engages the inner end of the bolt 8 and toward its other end it projects in'a longitudinally extending notch or recess 12 cut in the bolt 3. This recess faces away from the direction in which the door closes. A spring 13 of suitable charac:

ter engages said lever and normally holds the same in engagement with the bottom of the recess. A pin 14 fixed in'the lever projects toward the bolt and normally rides in a slot 15 provided in said bolt and of course extends from the bottom ofthe recess toward the opposite side of the same. A spring 16 separate from the spring 13 acts on the lever to; pull the same in that direction such that the bolt8 is normally projected outwardly of the plate 2 while the bolt 3 is in the opposite position or is retracted relative to said plate. This arrangement is clearly seen in Figs.

land 2.

' \Vhen the bolt 8 fully engages its socket 9 in the strike plate as shown in Fig. 7, the bolt 3 is then disposed adjacent the forward or shallow end of its socket 6, as shown in Fig. 4. Due to the arrangement of the parts as above described therefore, with a forward closingmovement of the door, the bolt 8 engaging its sloping socket will be retracted into the casing; while at the same time the bolt 3 will be advanced into its socket. The sockets in the strike plate are so arranged thatwhen the bolt 8 has been fully retracted andis bearing against. the flat surface of said plate, beyond the socket 9, as shown in Fig. 6,

the outer end of the bolt 3 is then entirely engaged in its socket 6 as shown in Fig. 3.

In orderto then hold the bolt 3 in this position against vundesired retracting movementmerely by pushing on the door from the inside, I provide a spring ratchet strip 17 which is mounted in the casing'above the lever 11 and engages the upper end of the same as said end advances with the bolt 3,

and preventssaid lever and bolt from moving back. With the parts thus held it will be seen that a pressure on the door to open the same will have no effect, since the bolt 3 is prevented'from being retracted. 7

To provide the necessary release for the bolt 3 I employ the following structure: Slidably but non-turnably mounted in the casing and projecting transversely thereof is ashaft 18, which projects beyond the casing on both sides so that it may also project through the door and having operating knobs or buttons on its outer ends. Fixed on and projecting radially from this shaft is an arm 19, whose outer end engages the lever 11 on the same side as that which engages the bolt 3. -A compression spring isprefer-- ably disposed about the shaft between the arm and the outer face of the casing, so as to hold the shaft at its inward limit of moveficient to withdraw'the pin 14 from its socket in the bolt, and also sufiicient to move said lever clear or to one side of the holding catch 17.

.The bolt 3 being then clear of .any connection with the holding lever is free to be retracted. Such movement willbe immediately and automatically imparted to the bolt by the spring vent the door from being readily opened, since the auxiliary bolt 8 can of course assumeits advanced position as the door opens without interference. It will also be noted that even though the spring 4 should give way, the door can still be opened. This isbecause although the bolt will not then be automatically retracted an outward or opening pressure on the door will cause the said bolts' to beretracted owing to the shape of its outer end and the cooperating socket in the strike plate' 'With the opening movement of the door and the accompanying advancing of the aux.- I

iliar bolt 8, the lever 11 will return to its original position as far as its rotation is concerned, on

16. Then when the push on the shaft 18 is released and the spring 20 acts to back the arm awa from the lever the spring 13 then elever to slide the same along the acts ont shaft to its original bolt-engaging position. Since the bolt has already returned to its normal position, the return of the'lever to a corres onding position will place the pin 14 and I soc et 15; in cooperating relationship with each other, and the parts are again ready for a further lockingtmovement. In order that the lever 11 whentreturning toits normal position transversely of the casing'shall not,

then engage the catch member 17, said member ahead of its ratchet portion is formed so as to avoid the upper ends of the lever as shown at17a in Figs. 1 and 2. When it is desired'to open the door from the out-v 4. The bolt having been thus retracted there is therefore nothing to preaccount of the action of the spring side the shaft 18 is of course pulled instead I of being pushed and the effect obviously is. the

same. When it is desired to close the door from the outside or from the inside, the shaft 18"is pushed orpulled on respectively, with of course no effect on the lever, since the arm 19 with such movements is held away from the lever. As a matter of fact in closing the door it is not necessary to manipulate the shaft at all, since a push or pull on the door itself will effect the closing of the same, such closing being controlled by the engagement of the auxiliary bolt 8 as previously described.

From the foregoing description it will be readily seen that I have produced such a device as will substantially fulfill the objects of the invention as set forth herein.

While this specification sets forth in detail the present and preferred construction of the device, still in practice such deviations from such detail may be resorted to as do not form a departure from the spirit of the invention, as defined by the appended claims.

Having thus described my invention what I claim as new and useful and desire to secure by Letters Patent is:

1. A door lock structure comprising a casing adapted to be mounted on a door, a lock bolt slidably mounted in the casing and normally retracted relative to the outer end of the same, a strike plate adapted to be mounted on a door casing in facing relation to the outer end of the casing, said plate having socket to receive the outer end of the bolt when the latter is advanced, means acting on the bolt to automatically advance the same into the socket when the door moves to a closed position relative to its casing and releasable means acting automatically to then positively hold the bolt against retraction.

2. A structure as in claim 1, with release means for said holding means operable from either side of the door and including a single manually operable member mounted in andmovable transversely of the casing and door in a door opening direction.

3. A door lock structure comprising a casing adapted to be mounted on a door, a lock bolt slidably mounted in the casing and normally retracted relative to the outer end of the same, a strike plate adapted to be mounted on a door casing in facing relation to the outer end of the casing, said plate having a socket to receive the outer end of a bolt when the latter is advanced, a norma 1y advanced auxiliary bolt slidably mounted in the casing and adapted to engage and be retracted by contact with the strike plate with the closing movement of the door, a lever pivoted intermediate its ends in the casing, said lever at one end engaging the auxiliar bolt, releasable connection means between the other end of-the lever and the lock bolt, said lever being arrang :l so that when the auxiliary bolt is advanced thelock bolt is retracted and v versa, means engaging the lever when the lock bolt is advanced to hold said bolt agai retractive movement, and manually actua d release means for disengaging the lever from the lock bolt and from the holdin means,

l. A structure as in claim 8, said release means including a shaft extending transversely of and slidably mounted in the easing and adapted to project beyond the opposite faces of the door; said shaft being movable from either side of the door in the direction toward which the door opens to effect a releasing action.

A look structure comprising a casing adapted to be mounted on a door, a lock bolt slidably mounted in the casing and normally retracted relative to the outer end of the same, a strike plate adapted to be mounted on a door casing in facing relation to the outer end of the casing, said plate having a socket to receive the outer end of the bolt when the latter is advanced, a normally advanced auto iliary bolt slidably mounted in the casing and adapted to engage and be retracted by contact with the strike plate with the closing movcment of the door, a lever in the casing engag ing at one end the auxiliary bolt, said lever extending along the outer side of the lock bolt, a pin projecting from the bolt engaging side of the lever and normally seating in a socket provided in the lock bolt, a pivot pin for the lever intermediate its ends and on which the lever is both turnable and slidable, said lever being arranged so that when the auxiliary bolt is advanced the lock bolt is retracted and vice versa, catch means engaging the lever when the lock bolt is advanced whereby to hold said bolt against retractive movement, and manually actuated means for pressing the lever away from the bolt so that the pin is disengaged from the bolt socket and the lever is clear of the catch means.

6. A structure as in claim 5, with a spring acting to retract the lock bolt when it is thus released, a spring acting on the lever to turn it so that the auxiliary bolt will be advanced when said bolt, with the opening of the door,

is clear of the strike plate, and another spring acting on the lever to slide it inwardly to its normal position transversely of the casing.

7. A lock structure comprising a casing adapted to be mounted on a door, a lock bolt slidably mounted in the casing and normally retracted relative to the outer end of the same, a strike plate adapted to be mounted on a door casing in facing relation to the outer end of the casing, said plate having a socket to receive the outer end of the bolt when the latter is advanced, a normally advanced auxiliary bolt slidably mounted in the casing and adapted to engage and be retracted by contact with the strike plate with the closing movement of the door, a lever in the casing engaging at one end of the auxiliary bolt, said lever extending along the outer side of the lock bolt, a pin projecting from the bolt engaging side of the lever and normally seating in a socket provided in the lock bolt, a pivot pin for the lever intermediate its ends and on which the lever is both turnable and slidable, said lever being arranged so that when the auxiliary bolt is advanced the lock bolt is retracted and vice versa, catch means engaging the lever when the lock bolt is adbeyond the same on both sides, an arm vanced whereby to hold said bolt against retract-ive movement, a transverse shaft slidably mounted in the casing and, projecting fixed on and projecting radially from the shaft to engage the inner face of the lever whereby said lever may be slid outwardly to an extent suflicient to disengage it from the lock bolt and from the catch means, and a spring acting on the lever to resist such sliding movement thereof.

8. A door lock structure comprising a casing adapted to be mounted on a door, a lock bolt slidably mounted in the casing and nor- Z mally retracted relative to the outer end of.

the casing, a lever pivoted in the casing for turning movement lengthwise and shifting V movement transversely thereof, a transversereleasable means acting on the bolt to ad 1y releasable normally engaged connection between the lever and bolt, means acting on the lever to turn the same and advance the bolt when the door moves to a closed position, and also preventing retractive moveturning movement lengthwise and shifting movement transversely thereof, a transverse ly releasable normally engaged connection between the lever and bolt, means acting on the lever to turn the same and advance the bolt when the door moves to a closed position, and also preventing retractlve movement of the lever, means acting on one face of the lever to shiftthe same transversely to maintain its connection with the bolt, a member bearing against the opposite face of the lever, and a shaft mounted transversely in the casing for push and pull movement from opposite sides of the door and on which said member is secured.

10. A door lock structure comprising a casing adapted to be mounted on a door, a lock bolt slidably mounted in the casing and normally retracted relative to the outer end of the casing, a strike plate adapted to be mounted on a door casing and having a socket to receive the bolt when the door is closed,

Vance the same when the door is moved'to a closed position, holding means apphed to said releasable means to then prevent retraction of the bolt, manual means to release said releasable means from the bolt and from the holding means, and a spring acting on the bolt to then retract the same; the bolt and'its socket having a taper facing in the direction of the doo-r'opening movement, whereby to' enable the door to be opened if the bolt spring should fail to function when the holding means is released. i

11. A doorlock structure comprising 9. casing adapted to bemounted on a door,'a lock bolt slidably mounted in the casing and nor mally 'retractedrelative to the outer end of the casing, a strike plate adapted to be mounted on a door casing and having a socket to receive the bolt whenthe door is closed, releasable means acting on the bolt to ad- Vance the same when the door is moved to a closed osition, holding means applied to said releasa 1e means to then prevent retraction of the bolt, and manual means to release said releasable means from the bolt; the bolt having a taper at its outer end facing in the direction of the door opening "movement and its socket having a similar slope.

In testimony whereof I affix my signature.

7 'RAL'PH T. ROSS. 

